Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech
Register Forgot Password?
Search

Welcome to Cherokee Forum!
Welcome to Cherokee Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 08-19-2008, 08:39 AM   #1
CF Veteran
 
finneys98xj's Avatar
 
Join Date: May 2008
Location: Virginia
Posts: 2,676

View finneys98xj's Photo Album My Photos
1993 Cherokee
Send a message via Yahoo to finneys98xj
Default Jeep Computer codes (OBDI & OBDII)

***DISCLAIMERS***
1) Please note that this is not a complete listing, but it is close to complete. It was compiled from a number of different sources. I therefore make no claims as to it's accuracy. This is a work in progress, so if anyone sees glaring omissions or errors, PM me and I will get it fixed.

2) Not all of these codes are relavant to Jeeps, but rather to Chrysler vehicles in general.

3) Computers (in this case the ECU) only do what you tell them, so they might not see problems which do exist, or they might see problems that do not exist, or they might indicate a problem which is in reality caused by some other component. Code readers have the ability to glean much more accurate information from the ECU than the methods outlined below. Therefore, this listing should only to be used as an aid in troubleshooting and NOT as a repair guide/manual.

***END DISCLAIMERS***


Intro and Notes
So, before outlining the proceedure (a.k.a. "key trick") to get the codes, a few things to note:
1) You may have to set the parking brake for the codes to show
2) On older models, the blink-spacing is not always perfectly uniform, so if you see 23 23, it's probably just a single 55 since codes are not repeated (55 is end of codes - it's normal)
3) On newer models with a digital odometer, the codes are usually displayed on the odometer rather than blinking the check engine light.
4) When the computer indicates major failure, it can activate "Limp In" mode, which guesses about data to compensate for sensor failure, allowing you to get the car to a mechanic. One major symptom of this is losing third and/or fourth gear on autos.

The "Key Tricks"
Older (OBDI) models - Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock"). The "check engine" light will flash. Count the flashes. Each code is a two digit code, so a (for example) 23 would be FLASH FLASH (pause) FLASH FLASH FLASH (long pause). It will never flash more than 9 times, so watch for those pauses!

Newer (OBDII) models - Put the key into the ignition, push down the odometer reset button, then turn the key to RUN with your finger on the button - and then release the button. The odometer will go through 1111111 through 999999, then display the car's serial number. It will then show the error codes (it might show them starting with P). If this method does not work, try the OBDI method.


Older Model Computer Codes (OBDI) - IMPORTANT! Codes may be different for newer vehicles starting circa 1996.
11 No ignition reference signal detected during cranking OR timing belt skipped one or more teeth; OR loss of either camshaft or crankshaft position sensor.
12 Battery or computer recently disconnected
13 MAP sensor or vacuum line may not be working
14 MAP sensor voltage below .16V or over 4.96V
15 No speed/distance sensor signal
16 Loss of battery voltage detected with engine running
17 Engine stays cool too long (bad thermostat or coolant sensor?)
OR
17 (1985 turbo only): knock sensor circuit
21 Oxygen sensor signal doesn't change (stays at 4.3-4.5V). Probably bad oxygen sensor
22 Coolant sensor signal out of range - May have been disconnected to set timing
23 Incoming air temperature sensor may be bad
24 Throttle position sensor over 4.96V
25 Automatic Idle Speed (AIS) motor driver circuit shorted or target idle not reached
26 Peak injector circuit voltage has not been reached (need to check computer signals, voltage reg, injectors)
27 Injector circuit isn't switching when it's told to (TBI)
OR (MPI) injector circuit #1 not switching right
OR (turbo) injector circuit #2 not switching right
OR (all 1990-) injector output driver not responding
- check computer, connections
31 Bad evaporator purge solenoid circuit or driver
32 (1984 only) power loss/limited lamp or circuit
OR
32 EGR gases not working (1988) - check vacuum, valve
OR
32 (1990-92) computer didn't see change in air/'fuel ratio when EGR activated - check valve, vacuum lines, and EGR electrical
33 Air conditioning clutch relay circuit open or shorted (may be in the wide-open-throttle cutoff circuit or normal on early 80's models if you don't have air conditioning)
34 (1984-86) EGR solenoid circuit shorted or open
OR
34 (1987-1991) speed control shorted or open
35 Cooling fan relay circuit open or shorted
OR
35 idle switch motor fault - check connections
36 (turbo only) Wastegate control circuit open or shorted
37 Shift indicator light failure, 5-speed
OR
part throttle lock/unlock solenoid driver circuit (87-89)
OR
solenoid coil circuit (85-87 Turbo only)
OR
Trans temperature sensor voltage low (1995 and on)
41 Alternator field control circuit open or shorted
42 Automatic shutdown relay circuit open or shorted
OR
42 Fuel pump relay control circuit
OR
42 Fuel level unit - no change over miles
OR
42 Z1 voltage missing when autoshutdown circuit energized (The Z1 voltage is the voltage of the circuits fed by the autoshutdown relay. This typically includes fuel pump and switched-battery feed to the ignition coil)
43 Peak primary coil current not achieved with max dwell time
OR
43 Cylinder misfire
OR
43 Problem in power module to logic module interface
44 No FJ2 voltage present at logic board
OR
44 Logic module self-diagnostics indicate problem
OR
44 Battery temperature out of range
45 Turbo boost limit exceeded (engine was shut down by logic module)
46 Battery voltage too high during charging or charging system voltage too low
47 Battery voltage too low and alternator output too low
51 Oxygen sensor stuck at lean position (this may be tripped by a bad MAP sensor system causing a rich condition. If you get hot rough idle and stalling, especially on deceleration, accompanied by flooded engine and difficulty restarting, that can be a bad MAP sensor causing the O2 sensor to try to compensate. If you get poor cold driveability, stumbling and bucking, and acceptable warm driving with poor gas mileage (a drop of 10 mpg or more), that is usually the O2 sensor.
OR
51 Internal logic module fault ('84 turbo only).
52 Oxygen sensor stuck at rich position
OR
52 Internal logic module fault ('84 turbo only)
53 Logic module internal problem
54 No sync pickup signal during engine rotation (turbo only)
OR
54 Internal logic module fault ('84 turbo only) - or camshaft sensor/distributor timing
55 End of codes
61 "Baro" sensor open or shorted
62 EMR mileage cannot be stored in EEPROM
62 PCM failure SRI mile not stored
63 Controller cannot write to EEPROM
64 Catalytic converter efficiency failure
65 Power steering switch failure
66 No CCD Message From TCM and/or No CCD Message From BCM

Newer model Computer codes (OBDII)
30 Sensor heater relay problem
36 Sensor heater relay problem
106 MAP sensor voltage out of range detected at startup
107 MAP sensor voltage too low
108 MAP sensor voltage too high
112 Intake air temperature sensor voltage low
113 Intake air (charge) temperature sensor voltage high
116 Coolant temparature sensor reading doesn't make sense
117 Engine coolant temperature sensor voltage low
118 Engine coolant temperature sensor voltage high
121 Throttle position sensor and MAP sensor disagree with each other
122 Throttle position sensor voltage low
123 Throttle position sensor voltage high
125 Taking too long to reach proper operating temparature and switch to energy-efficient mode
130 Sensor heater relay problem
130 O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
131 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
135 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
136 O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)
137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
142 O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
143 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
144 O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
145 O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
146 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
147 Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)
151 Oxygen sensor voltage problem - short circuit to ground?
152 Oxygen sensor voltage problem - short circuit to active 12V?
153 Oxygen sensor response too slow
154 Oxygen sensor does not show either a rich or lean condition - may need replacement
155 Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)
157 Oxygen sensor voltage problem - short circuit to ground?
158 Oxygen sensor voltage problem - short circuit to active 12V?
159 Oxygen sensor response too slow
160 Oxygen sensor does not show either a rich or lean condition - may need replacement
161 Oxygen sensor heater element not working properly (this device helps to reduce emissions more quickly)
171 The oxygen sensor is saying that the system air/fuel mix is far too lean (too much fuel is being added as a correction).
172 The oxygen sensor is saying that the system air/fuel mix is far too rich (too much air is being added as a correction).
174 The oxygen sensor is saying that the system air/fuel mix is far too lean (too much fuel is being added as a correction).
175 The oxygen sensor is saying that the system air/fuel mix is far too rich (too much air is being added as a correction).
176 Flex fuel sensor can't be seen
178 Flex fuel sensor problem
179 Flex fuel sensor problem
182 Compressed natural gas temperature sensor problem
183 Compressed natural gas temperature sensor problem
201 Injector #1 control circuit problem (open or shorted)
202 Injector #2 control circuit problem (open or shorted)
203 Injector #3 control circuit problem (open or shorted)
204 Injector #4 control circuit problem (open or shorted)
205 Injector #5 control circuit problem (open or shorted)
206 Injector #6 control circuit problem (open or shorted)
207 Injector #7 control circuit problem (open or shorted)
208 Injector #8 control circuit problem (open or shorted)
300 Misfire detected in multiple cylinders.
301 Misfire detected in cylinder #1.
302 Misfire detected in cylinder #2.
303 Misfire detected in cylinder #3.
304 Misfire detected in cylinder #4.
305 Misfire detected in cylinder #5.
306 Misfire detected in cylinder #6.
307 Misfire detected in cylinder #7
308 Misfire detected in cylinder #8.
320 Crankshaft position sensor reference signal cannot be found while the engine is cranking.
325 Knock sensor (#1) signal is wrong.
330 Knock sensor (#2) signal is wrong.
340 No camshaft signal being received by the computer
350 A coil is drawing too much current.
351 Coil #1 is not reaching peak current at the right time
352 Coil #2 is not reaching peak current at the right time
353 Coil #3 is not reaching peak current at the right time
354 Coil #4 is not reaching peak current at the right time
355 Coil #5 is not reaching peak current at the right time
356 Coil #6 is not reaching peak current at the right time
357 Coil #7 is not reaching peak current at the right time
358 Coil #8 is not reaching peak current at the right time
401 A required change in air/fuel mixture was not detected during diagnostic test.
403 An problem was detected in the EGR solenoid control circuit.
404 The EGR sensor's reported position makes no sense
405 EGR position sensor voltage wrong.
406 EGR position sensor voltage wrong.
412 The secondary air solenoid control circuit seems bad (this is used for the aspirator).
420 The catalyst seems inefficient (#1).
432 The catalyst seems inefficient (#2).
441 Evaporative purge flow system not working properly
442 A leak has been detected in the evaporative system!
443 Evaporative purge flow system solenoid not working properly
455 A large leak has been detected in the evaporative system!
456 A small leak has been detected in the evaporative system!
460 The fuel level sender is not reporting any change over a long distance. Something seems wrong.
461 The fuel level sender is not reporting any change over a long time. Something seems wrong.
462 Fuel level sender voltage wrong.
463 Fuel level sender voltage wrong.
500 Haven't heard from the speed sensor lately.
505 The idle speed air control motor doesn't seem to be working correctly.
522 Oil pressure sensor problems
523 Oil pressure sensor problems
551 The power steering switch may not be working. (Neons: high pressure is showing up at high speed)
600 Oh-oh! The coprocessors aren't talking to each other within the computer!
601 Internal computer error!
604 Internal computer error! (RAM check)
605 Internal computer error! (ROM)
615 Starter relay circuit problem
622 Generator field control problem
645 A/C clutch relay circuit problem.
700 The automatic transmission computer or Aisin computer has a problem - ask it what's going on. I don't know.
703 Brake switch circuit information seems wrong.
711 Based on the transmission temperature and its operations, it looks like the transmission temperature sensor's gone bad.
712 Transmission fluid temperature sensor voltage wrong.
713 Transmission fluid temperature sensor voltage wrong.
720 The Output Shaft Speed Sensor doesn't match the reported vehicle speed.
740 The engine's running faster than it should for these speeds, so I think thetorque convertor clutch lock-up system is bad
743 Torque converter clutch (part throttle unlock) solenoid circuit problem - shift solenoid C electrical fault
748 Governor Pressure Solenoid circuit problem (Transmission relay circuit problem in Jeep RE transmissions)
751 Overdrive override switch has been pressed for over five minutes. Just thought you should know.
753 Overdrive solenoid control circuit problem (transmission relay circuit in Jeep RE transmissions.)
756 Shift solenoid B (2-3) fault
783 The overdrive solenoid can't go from 3rd gear to the overdrive gear.
801 Transmission reverse gear lockout solenoid circuit problem!
833 Problem with the clutch-released switch circuit?
1192 Inlet air temperature sensor voltage is wrong
1193 Inlet air temperature sensor voltage is wrong
1194 Oxygen sensor heater performance is faulty
1195 Oxygen sensor is slow
1196 The oxygen sensor switched too slowly (bank 2).
1197 The oxygen sensor switched too slowly (bank 1).
1198 Radiator coolant temperature sensor voltage is wrong.
1199 Radiator coolant temperature sensor voltage is wrong.
1281 The engine is staying cold too long - check your thermostat.
1282 The fuel pump relay circuit seems to be having a problem.
1288 The intake manifold short runner tuning valve circuit seems to be having a problem.
1289 There's a problem in the manifold tuning valve solenoid control circuit.
1290 Compressed natural gas system pressure is too high
1291 The heated air intake sensor does not seem to be working.
1292 Natural gas pressure sensor issue
1293 Natural gas pressure sensor issue
1294 Can't get to target engine speed, check for vacuum leaks and idle speed motor issues.
1295 The throttle position sensor doesn't seem to be getting enough electricity.
1296 The MAP sensor doesn't seem to be getting enough electricity.
1297 The MAP sensor doesn't change its reading when the engine is running!
1298 During wide-open throttle, the engine runs lean.
1299 MAP Sensor and Throttle Position Sensor signals don't match, check for a vacuum leak.
1388 Auto shutdown relay circuit problems?
1389 No Z1 or Z2 voltage seen by the computer when the auto shutdown relay is used.
1390 Cam and crank signals don't match - did the timing belt skip a tooth?
1391 Sometimes, I can't see the crank or cam sensor signal.
1398 I can see the Crank Sensor's signal when I prepare for Misfire Diagnostics. Try replacing it.
1399 Problem in the Wait to Start Lamp circuit - (diesels only?)
1403 EGR position sensor not getting (enough) voltage.
1476 Too little secondary air injection during aspirator test.
1477 Too much secondary air injection during aspirator test.
1478 Battery temperature sensor voltage wrong.
1479 Transmission fan relay circuit problems?
1480 PCV solenoid circuit problems?
1481 Transmission RPM pulse generator signal for misfire detection seems wrong.
1482 Catalyst temperature sensor circuit shorted low.
1483 Catalyst temperature sensor circuit shorted high.
1484 The catalyst seems to be overheating!
1485 Air injection solenoid circuit problems.
1486 Pinched or blocked hose in the evaporative hose system.
1487 Control circuit of the #2 high-speed radiator fan control relay is having problems.
1488 Auxiliary 5-volt sensor feed is too low.
1489 High speed radiator fan control circuit problem.
1490 Low speed radiator fan control circuit problem.
1491 Radiator fan control circuit problem (may be solid state relays as well as other circuits).
1492 Ambient or battery temperature sensor voltage wrong
1493 Ambient or battery temperature sensor voltage wrong
1494 Leak Detection Pump (LDP) pressure switch problem - electrical or the pump itself.
1495 Leak Detection Pump (LDP) pressure switch problem - the solenoid circuit.
1496 Sensor feed is below an acceptable limit. (under 4v for 4 seconds - should be 5v).
1498 High speed radiator fan control circuit problem. (#3 control relay)
1594 Voltage too high in charging system.
1595 Speed control vacuum or vent solenoid control circuits shorted or lost.
1596 Speed control switch always high
1597 Speed control switch always low
1598 A/C pressure sensor voltage high
1599 A/C pressure sensor voltage low
1681 No messages received from the cluster control module (dashboard computer).
1682 Charging system doesn't seem to be working well. Check alternator, etc.
1683 Speed control servo power control circuit problem.
1684 The battery has been disconnected within the last 50 starts.
1685 Invalid key received from the Smart Key Immobilizer Module.
1686 No messages received from the Smart Key Immobilizer Module.
1687 No messages received from the Mechanical Instrument Cluster module.
1 693 The companion engine control module has shown a fault.
1694 No messages received from the powertrain control module-Aisin transmission.
1695 No messages received from the body control module.
1696 Unsuccessful attempt to write to an EEPROM location!
1697 Unsuccessful attempt to update Service Reminder Indicator (SRI or EMR) mileage!
1698 No messages received from the electronic transmission control module or the Aisin transmission controller.
1719 Transmission 2-3 gear lockout solenoid control circuit problem.
1740 Either the tcc solenoid or overdrive solenoid systems doesn't seem to be making much sense.
1756 Transmission control pressure not equal to target. (Mid pressure problem)
1757 Transmission control pressure not equal to target. (Zero pressure problem)
1762 The Governor Pressure Sensor input was too high or too low for 3 consecutive park/neutral calibrations.
1763 The Governor Pressure Sensor input is too high
1764 The Governor Pressure Sensor input is too low.
1765 Open or short in the Transmission Relay control circuit.
1899 The Park/Neutral switch seems to be stuck!






This is a copy and paste from Jeep Horizons.com the post was made by ThePhantum.
__________________
RIP Heep!1998-2008)
Her last stand!
http://www.cherokeeforum.com/showthr...3996#post83996

Her Replacement.
http://www.cherokeeforum.com/f46/big-stinky-9651/


www.cherokeetalk.com
Tell them finney98xj sent you.

I rather be Stroked than Rammed and I dont do Bowties!
finneys98xj is offline   Reply With Quote
Old 08-19-2008, 10:49 AM   #2
Registered User
 
Join Date: Sep 2007
Posts: 4,357

View Kyle's Photo Album My Photos
Cherokee
Default

Added
Kyle is offline   Reply With Quote
Old 08-19-2008, 01:34 PM   #3
::CF Administrator::
 
okcjeeper's Avatar
 
Join Date: May 2008
Location: Okc area
Posts: 9,926

View okcjeeper's Photo Album My Photos
1991 Cherokee
Default

where did they get added?

Nevermind I found em..
okcjeeper is offline   Reply With Quote
Old 10-20-2008, 01:41 PM   #4
Newbie
 
Join Date: Oct 2008
Posts: 11

View Stormcloud_59's Photo Album My Photos
1990 Cherokee
Default Code reading

Is there a way to read codes with out a reader.
Stormcloud_59 is offline   Reply With Quote
Old 09-02-2009, 03:16 AM   #5
Registered Users
 
Join Date: Mar 2009
Location: Pa
Posts: 1,397

View Cherokee 4.0's Photo Album My Photos
1998 Cherokee
Default

Quote:
Originally Posted by Stormcloud_59 View Post
Is there a way to read codes with out a reader.
didnt you read the op
Cherokee 4.0 is offline   Reply With Quote
Old 09-26-2009, 12:36 AM   #6
Seasoned Member
 
zman32006's Avatar
 
Join Date: Sep 2009
Location: 30907
Posts: 311

View zman32006's Photo Album My Photos
1990 Cherokee
Send a message via AIM to zman32006 Send a message via Yahoo to zman32006 Send a message via Skype™ to zman32006
Default

I tried this technique on my 1990 Jeep Cherokee 4wd and It didnt work. I took the panel off to see if the lights were out. I replaced them and still nothing. While I was replacing them I shined a flashlight through the screen and all I have is the red brake light, 4 part time, 4 full time, a yellow hollow triangle, check emissions, a seatbelt and check Anti lock. I didnt see an engine or check engine or anything. btw I looked on the door. its a 1990 but was manufactured on 8/89. idk if that helps.
zman32006 is offline   Reply With Quote
Old 11-19-2009, 02:30 AM   #7
Newbie
 
Join Date: Oct 2009
Posts: 2

View Spc Reaper's Photo Album My Photos
Cherokee
Default Reading 0 codes but light wont reset

My 98 xj classic, reads no codes both with my scan tool and with the odo button and key method. Yet for some reason my check engine light is still on. My obdII scanner even says theres no problem but still the damn light. (Im OCD). any help would be apreciated. How do I get the darn light to turn off.
Spc Reaper is offline   Reply With Quote
Old 11-19-2009, 03:15 AM   #8
CF Veteran
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383

View fantic238's Photo Album My Photos
1988 limited Cherokee
Send a message via MSN to fantic238 Send a message via Skype™ to fantic238
Default

Why do i feel happy to have a Renix jeep?
__________________
Stefano
Memento audere semper

[SIGPIC][/SIGPIC]
If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
J**P#4
CBW #70

"god said rock and then came ledZeppelin"

For CAD geeks here:
http://www.cherokeeforum.com/f58/how...-bumper-27077/
fantic238 is offline   Reply With Quote
Old 11-19-2009, 03:22 AM   #9
CF Veteran
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383

View fantic238's Photo Album My Photos
1988 limited Cherokee
Send a message via MSN to fantic238 Send a message via Skype™ to fantic238
Default

Quote:
Originally Posted by zman32006 View Post
I tried this technique on my 1990 Jeep Cherokee 4wd and It didnt work. I took the panel off to see if the lights were out. I replaced them and still nothing. While I was replacing them I shined a flashlight through the screen and all I have is the red brake light, 4 part time, 4 full time, a yellow hollow triangle, check emissions, a seatbelt and check Anti lock. I didnt see an engine or check engine or anything. btw I looked on the door. its a 1990 but was manufactured on 8/89. idk if that helps.
Because the OP forgot to add that this information DOES NOT APPLY TO XJs MADE BEFORE 1992.
__________________
Stefano
Memento audere semper

[SIGPIC][/SIGPIC]
If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
J**P#4
CBW #70

"god said rock and then came ledZeppelin"

For CAD geeks here:
http://www.cherokeeforum.com/f58/how...-bumper-27077/
fantic238 is offline   Reply With Quote
Old 11-20-2009, 12:51 AM   #10
CF Veteran
 
5-90's Avatar
 
Join Date: May 2008
Posts: 2,996

View 5-90's Photo Album My Photos
1988 Cherokee
Default

Quote:
Originally Posted by fantic238 View Post
Because the OP forgot to add that this information DOES NOT APPLY TO XJs MADE BEFORE 1992.
Close. 1984-1990 w/AMC engine are pre-OBD.

1984-1986 w/GM V6-173 are OBD-I (GM control setup.)

1991-1995 are OBD-I (Chrysler)

1996-2001 are OBD-II (Chrysler)

I've got a full listing of codes and such on my site in the Tech section as well - I know there are some things that need to be fixed (for the site,) but bear with me - I just kicked open domains recently, moved and trimmed the site, and I'm still getting everything ironed out...

I hope to be adding more tech fairly soon!
__________________
Kelley's Works in Progress - www.kelleyswip.com
KWiP Parts Exchange - www.kelleyswip.com/exchange.html

"It's in the shop, being readied for the next failure."
5-90 is offline   Reply With Quote
Old 11-20-2009, 03:37 AM   #11
CF Veteran
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383

View fantic238's Photo Album My Photos
1988 limited Cherokee
Send a message via MSN to fantic238 Send a message via Skype™ to fantic238
Default

Are you sure about the years? The 1991 4.0 cherokee is pre-OBD (renix) on some manual i have. The only difference is the newer style connectors and wiring.
__________________
Stefano
Memento audere semper

[SIGPIC][/SIGPIC]
If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
J**P#4
CBW #70

"god said rock and then came ledZeppelin"

For CAD geeks here:
http://www.cherokeeforum.com/f58/how...-bumper-27077/

Last edited by fantic238; 11-20-2009 at 05:00 AM.
fantic238 is offline   Reply With Quote
Old 11-20-2009, 03:40 AM   #12
CF Veteran
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383

View fantic238's Photo Album My Photos
1988 limited Cherokee
Send a message via MSN to fantic238 Send a message via Skype™ to fantic238
Default

Quote:
Originally Posted by okcjeeper View Post
where did they get added?

Nevermind I found em..
Admin, you're a '91, what do you have under the hood, OBD 1 or renix?
__________________
Stefano
Memento audere semper

[SIGPIC][/SIGPIC]
If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
J**P#4
CBW #70

"god said rock and then came ledZeppelin"

For CAD geeks here:
http://www.cherokeeforum.com/f58/how...-bumper-27077/
fantic238 is offline   Reply With Quote
Old 11-20-2009, 05:40 AM   #13
CF Veteran
 
5-90's Avatar
 
Join Date: May 2008
Posts: 2,996

View 5-90's Photo Album My Photos
1988 Cherokee
Default

Quote:
Originally Posted by fantic238 View Post
Are you sure about the years? The 1991 4.0 cherokee is pre-OBD (renix) on some manual i have. The only difference is the newer style connectors and wiring.
According to my 1991 FSM, it's OBD-I. The 1990 FSM shows RENIX.

Per recent Jeep history, Chrysler bought AMC/Jeep from AMC/Renault in mid-1988, took over production about a month later, and the intervening time was spent adapting the ChryCo control systems to work with the AMC inline six. Once it was made to work, the OBD-I system was put in the XJ and MJ, and the OBD-I 242ci six was put into the YJ (it had the 258ci up to that point, but I don't recall if it was directly OBD-I at that point, or still pre-OBD.)

The reason for the "flyer" on early years (1984-1986 w/GM engine) was because the engine and control system were bought entire from General Motors until the 242ci six was ready for production.
__________________
Kelley's Works in Progress - www.kelleyswip.com
KWiP Parts Exchange - www.kelleyswip.com/exchange.html

"It's in the shop, being readied for the next failure."
5-90 is offline   Reply With Quote
Old 11-20-2009, 07:22 AM   #14
CF Veteran
 
fantic238's Avatar
 
Join Date: Jun 2009
Posts: 5,383

View fantic238's Photo Album My Photos
1988 limited Cherokee
Send a message via MSN to fantic238 Send a message via Skype™ to fantic238
Default

I think there are some 1991 built still with renix, or maybe SBEC without diagnostic connector, at least overseas. I have a match for a "SENSOR, knock" PN 3300 2933 in the 1991-1993 parts catalog.
__________________
Stefano
Memento audere semper

[SIGPIC][/SIGPIC]
If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
J**P#4
CBW #70

"god said rock and then came ledZeppelin"

For CAD geeks here:
http://www.cherokeeforum.com/f58/how...-bumper-27077/
fantic238 is offline   Reply With Quote
Old 07-12-2010, 12:22 PM   #15
Junior Member
 
Gryphon439's Avatar
 
Join Date: Jul 2010
Location: California
Posts: 51

View Gryphon439's Photo Album My Photos
1991 Cherokee
Default

Quote:
Originally Posted by fantic238 View Post
Because the OP forgot to add that this information DOES NOT APPLY TO XJs MADE BEFORE 1992.
Correction: 1991
Gryphon439 is offline   Reply With Quote
Old 07-12-2010, 12:22 PM
 
 
 
submit to reddit
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
p0132 OBDII code - "O2 sensor high voltage" - ??? TrueBlueXJ OEM Cherokee Tech 11 10-25-2014 03:53 PM
V8 Jeep Grand Cherokee Magnum Computer (1995) jamaicanmecrazy For sale 0 10-08-2008 06:36 PM
sensor codes???? help!! PeeJJeep OEM Cherokee Tech 3 10-02-2008 02:13 PM
1998 xj CEL codes help jlb586 OEM Cherokee Tech 11 08-21-2008 09:45 AM
98 xj codes help 91rangerturbo OEM Cherokee Tech 30 07-23-2008 06:13 AM

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 08:42 AM.


This site is in no way affiliated with Jeep or Chrysler.

Emails Backup